The Mixed-Use (MU) zones provide for mixed-use developments that permit a broad range of commercial, institutional, and multiple dwelling unit residential development at varying densities. The MU-15 through MU-22 zones specifically cover the Dupont Circle area with the intention of protecting and enhancing the unique characteristics of the neighborhood.

The purposes of the Dupont Circle Mixed-Use zones are to:

Require a scale of development consistent with the nature and character of the Dupont Circle area in height and bulk and ensure a general compatibility in the scale of new buildings with older, low-scale buildings;

Enhance the residential character of the area by maintaining existing residential uses and controlling the scale, location, and density of commercial and residential development;

1 A horizontal plane may be established at 25 ft. above the mean finished grade at the middle of the rear of the structure for the purpose of measuring rear yard2 Where a lot abuts an alley: (1) For that portion of the structure below a horizontal plane described in from the center line of the alley to the rear wall of the portion; and For that portion of the structure above the horizontal plane described in Subtitle G § 605.5, from the rear lot line to the rear wall of that portion immediately above the plane; and3 Where a lot does not abut an alley, the rear yard shall be measured from the rear lot line to the rear wall of the building or other structure.